sperry



(No Model.)

3 Sheets-Sheet l.v E. A. SPERRY. 1

i REGULATOR FOR DYNAMO ELEGTRIG MACHINES.

Patented Feb. 26, 1889 (No Model.) 3 Sheets-Sheet 2. E. A. SPBRRY.

l REGULATOR PoR DYNAMO BLEGTRIG MACHINES. NQ. 398,668. Patented Feb. 26. 1889.

.1.. uff L; F Algun 'nr -W li ML H1 1 fi. J j M1 l @L (No Model.) 3 sheets-sheen a.

B. A. SPERRY.

REGULATOR ECR DYNAMC ELECTRIC MACHINES. No. 398,668. Patented Feb. 26, 1889.

. PETERa Fhclvmhugnpmn wnxhingmn. D. C.

block is supported so as to reciprocate on the UNITED STATES PATENT ELMER A. SPERRY, Ol? CHICAGO, lLLlXOlS, ASSiGXOfl 'O ',illll SPERRY ELECTRIC COMPANY, OF SAME PLACE.

REGULATGR FOR DYNANlO-ELEQ'RlC lViACHiNS.

SPECIFICATION forming part of Letters Patent No. 398,668, dated February 26, 1889.

Serial No. 288,812. (No model.)

T0 all whomy it 11mg/ concer/1:

Be it known that lo, ELMER A. SPERRY, a citizen ot the United States, and a resident of i Chicago, in the county of Cook and State of Illinois, have invented a new and useful Dyp name-Regulator, ot which. the following is a l specification.

My invention relates te mechanism lor reg'- ulating the current ot dynamo-electric machines,and has for its object to provide a cheap and simple regulator.

My invention is illustrated in the acceuipanying drawings, whereinp Figure 1 is an end view ot' a dynamo-electric machine with my device attached and` parts removed. Fig. 2 is a side view ot' aI portion of the driving mechanism. Fit'. I3 is a plan View of the driving mechanism. Fig. 4 is a section thereof. Fig'. 5 is a tliagranr matic view of the driving-ratchet and dogs. Fig'. (3 is a detail-ot` the re-enforcingmeehanism.

Like parts are indicated by the same letter in all the tigures.

A is the armature; B, the conimutator; C C, the held-magnets; D D, the brushes; E, the movable support therefor, which, together with the brushes, constitutes the movable current-collector; E 1, the conducting-wires, and F the bed-plate. y

G is a plate supported on the standard G l and bearing the vertical `guides G2 G?.

G3 is a shaft journaled on such 'frame and driven by means of the pulley if* from the end of the dynamo-shaft or other source of power.

G5 is an eccentric, G'l a pitman therefrom, and GT a block driven by such pitman. This guidefbar GS, which is secured to the vertical guides G3 G2 at an angle to the reci procating ratchet-bar G. A

On .the block G7 are secured the dogs G10 GH. These two dogs are adjustably secured to each other by the link-bars G1'e G12. The ratchet-bar is secured to the reciprocating frame, which consists ot' the upper bar, J, and lower bar, J. This frame is connected by the spring or elastic connection J'2 with the current-collector. The bar J/ is guided by means ot the cross-hars J3 on the boti tom. ot' the plate G, and is provided with a other end to an arm` l, t'rom one ol' thel standards G9. Rigid lo the shaft is the vibrator or magnetic mass li?, adjustz'ibly and flexibly held at its lower end h v means ot' the springh li" and thumb-nut l'L io the arm K5 from the hed-plate and in a position near one ot the field-magnets C.

From the shaft proie the arm lil", adjustably secured by the set crew l?, and receiving,` at its lower end a trunnion, KS, journaled on the dog G11. L is another arm l'rom such shaft K; L', a spiral springx therefrom; L?, an elbow crank-lever pivoted on the bottom of .the plate G, one arm secured tothe spring L land the other carryingl the trun nion L3, which travels in t-he cam J t.

L'L is a spring which engages the dog G10,

. and by the links Gli Gli2 opposes the 'upward movement ot the arm KG. The cam .T1 may be any shape as required and as above explained.

The two springs )l and N are shown imping'ing laterally against the reciprocating` ratchet-bar G, and their ot'ice is to hold the reciprocatingl frame in any position to which it has been moved by the dogs, because ot the spring-connection J?, which tends to throw the frame back to its original position before inertia of the current-collector Ais overcome and motion imparted thereto.

The use and operation ot my invention are as follows: It is not necessary to describe the ordinary operation ot the dynamo, or the peculiarities of the flow ot current, or the peculiarities of the development ot currents in the coils of the armature, or the variations of the mf'tgnetism of the held-magnets, or the ordinary shifting` of the current-col lector between the points of minimum and maximum current upon the commutator for purposes of regula- IOO tion. Assuming that the parts are in the po sition indicated in Fig. l and the line-resista-nce permanent, the magnetization of the field-magnet will be constant, and the vibrator 5 or magnetic mass lr2 will be held at a practically uniform distance from the adjacent field-magnet. lf, now, the resistance be suddenly diminished-as, for instance, by the eX- tinguishment of some of the lamps on thc 1o main linc-and it is desired that the currentcollector should rotate over toward the position shown in dotted lines, this motion can be accomplished by the retraction of the bars J and J and the spring-connection J2. This lwill only take place when the lower dog, G, is held against its adjacent ratchet-bar, and

in that event the reciprocations of the block Gr will cause the dog to feed the bar J, together wit-h the bars J and J2, toward the left zo in Fig. l, thus carrying the current-collector about toward the position indicated in dotted lines; but this action only takes place when the arm K bears upward against the dog G11 suiiiciently to overcome the downward tend- 2 5 ency of the spring L4. This motion the arm K6 will have when the vibrator or magnetic mass K2 is drawn with suiicient force toward the field-magnet C. The field-magnet C will draw this vibrator or magnetic mass 3o to itself proportionately to the increase of magnetism in the field-magnet C, so long as the same is unaffected by the currents in the armature, and this increasetakes place as the `resistance in the line is diminished by the ex- 3 5 ti n guishment of lamps or by other causes. The vibrator or magnetic mass K2 is drawn closer to its magnet C, the arm KG forces the dog G into engagement with its ratchet, and the bars J, J', and J 2 are moved step by step toward 4o the left in Fig. l to rotate the current-collector toward the position indicated in dotted lilies. This operation continues until the currentcollector has reached a position where the current is again normal. It is found that as the current-collector moves toward the position indicated in the dotted lines the position of the neutral point of the armature so changes with reference to the held-magnet C, adjacent to the vibratoior magnetic mass K2, that the resultant of the magnetism of the field-magnet C and the currents in the armature, which resultant affects the vibrator or magnetic mass, cannot sufficiently affect the vibrator or magnetic mass K2, and I have therefore supplied the compensating motor, which is operated by cam J4, so located on the bar J that as the neutral point approaches such vdescribed position the roller or trunnion LS travels along such cam J and by means of 6o the spring or motor L and arm L assists in holding the vibrator or magnetic 'mass K2 toward its field-magnet. Generally the variation of the assistance during the greater part n of this movement is not great; but as the col- 6 5 lector nearly approaches the position indicated and the described resultant rapidly loses its power to laffect the vibrator or magnetic mass K2 the curved or parabolic portion of the cam J4 receives the trunnion L3, rapidly swings the elbow-lever L2, and thus increases the power of the compensating motor or spring to force the vibrator or magnetic mass into that position which it must occupy to continue the excursion of the bar J toward the left in Fig. l, and which position the magnetism of the field-magnet or the currents of the armature or the resultant of the magnetism and the currents of the armature are powerless to make it assume, and which position it must occupy to maintain the normal current in the exterior circuit traversed by the perfected or generated current.

The spiral spring, which is connected with -the arm on the rock-shaft to which the mag-- neg-tic mass is secured, operatcs as a compensating motor. Of course many other kinds of motors could be Vused in this position to reenforce or resist the action of the magnetic mass in compensation for its change of power incident to the variation in the magnetization of the field-magnet at the point near which such magnetic mass is placed, or, in other words, to the variation in the resultant of the magnetization of the field-magnet and the currents in the armature.

The shifting device or shifter for the movable cu'rrent-collector consists, substantially, of the reciprocating bar, though of course other Shifters might be used. This bar I call the shifter. The block and pitman which are .driven from the shaft of the dynamo I term the driving-motor, since they co-operate to reciprocate the shifter. Great Variations in this form of the device could be made, it being probable that even rotary motion could be employed.

The parts described as connections and so alluded to in the claims consist, essentially, of power-transmitting pieces or connections, the object being to communicate power or motion from one part to another. In the form of device shown the operation of the magnetic mass, aided at certain parts of the excursionof the shifter bythe re-enforcing motor, which is controlled and setr 'in operation by the cam,

is primarily to apply the driving-motorto the shifter in such manner as to secure the proper motion of the shifter.

The magnetic mass maybe of any shape or character and supported in any manner, and may even be of other than magnetic material,

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provided only its character is such as to make it respond as would the magnetic mass, as shown in the drawings-such, for example, as a solenoid.

The object is to transmit the force or power existing in the place where such mass is located into motion or power to be applied directly or indirectly to shiftin the current-collectors or to connect the driving-motor with a device t0 shiftsuch collectors. Then the magnetic mass is located as shown, and the lamps are being turned on, the action of a compensating motor is to gradually decrease the action which it exercises toward such mass. It might be possible to so place the magnetic mass as that this action would be reversed and the power of the magnetic mass would be in the first instance too great, and would require a diminishing resisting influence from the motor instead of an increasing aiding influence, as in the forni herein described. In either case the result would be the same-namely, the compensation by such motor of the inequality of iniiuence exercised over the magnetic mass by the iield-magnetand hence we call this the compensating motor. The varying heights at which the dogs are held with respect to the ratchets by the lever K6 permits them to skip a greater or less number of ratchet-teeth in successive excursions, and thus to engage the ratchets at varying points along their travel, as shown in Fig. Thus each successive excursion cf the dogs may cause the ratchets to travel unequal distances, owing to the angular arrangement of such ratchet-bar with reference to the travel of the dogs.

The ratchet-bar may be called a shifter when considered independent from the motor, or if regarded as fixed thereto it may be regarded as a part of such motor.

I claim, and desire to secure by Letters Patent, is as follows:

l. In a current-regulator for dynamo-electric machines, the combination of a vibrating magnetic mass in proximity to the field-magnet with a movable current-collector and an elastic connection between the two.

In a current-regulator for dynamo-electric machines, the combination of a vibrating magnetic mass pivoted in proximity to the held-magnet with a movable current-collector and an elastic connection between the two.

S. In a current-regulator for dynamo-electric machines, the combination of a magnetic mass responsive to the resultant of the magnetism of the field-magnet and the currents of the armature with a movable current-collector and a power-transmitting connection between the collector and the mass.

i. In a current-regulator for dynamo-electric machines, the combination of a magnetic mass in proximity to the field-magnet with a movable current-collector, connections between the two, a compensating motor, and

power-transmitting connections therefrom to4 the collector.

5. In a currerit-regulator for dynamo-electric machines, the combination of a magnetic mass in proximity to the field-magnet with a movable currentcollector, connections between the two, a compensating motor, and power-transmitting connections therefrom to the mass and thence to the collector.

G. In a current-regulator for dynamo-electric machines, the combination of a magnetic mass in proximity to the field-magnet with a movable current-collector and an elastic connection between the two, and a compensating motor and connections therefrom to the mass.

7. In a current-regulator for dynamo-electric machines, the combination of a magnetic mass in proximity to the field-magnet, a movable current-collector, a shifter therefor connected therewith, and p ower-tran smittin g con nections between such mass and shifter.

8. In a current-regulator for dynamo-electric machines, the combination of a magnetic mass in proximity to the `field-magnet, a movable current-collector, a shifter therefor connected therewith by an elastic connection, and power-transmitting connections between such mass and shifter.

9. Ina current-regulator for dynamo-electric machines, the combination of a magnetic mass in proximity to the field-magnet, a inevable current-collector, a shifter therefor connected therewith, a compensating motor connected with such mass, and power-transmitting connections between the shifter and mass.

lO. In a current-regulator for dynamo-electric machines, the combination of a magnetic mass in proximity to the field-magnet, a movable current-collector, a shifter therefor connected therewith by an elastic connection, a

` compensating motor connected with such mass, and power-transmitting connections be- Having thus described my invention, what tween the shifter and mass.

ll. In a current-regulator for dynamo-electric machines, the combination of a magnetic mass responsive to the resultant of the magnetism in the field-magnet and the currents in the armature with a movable current-collector, connections between the two, a compensating motor connected with the mass, and a controller for such motor moving with the collector, so as at a certain point in the motion thereof to apply the said motor.

12. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor, a driving-motor for such shifter, a magnetic mass in proximity to the field-magnet, and mechanical connections from the mass to the motor to control the application of the latter to the shifter.

13. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor, an elastic connection from such shifter to such collector, a driving-motor for such shifter, a magnetic mass in proximity to the field-magnets, and connections from the mass to the motor to control the application of the latter to the shifter.

li. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor, the two connected by an elastic connection, and a driving-motor for such shifter.

l5. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor, a driving-motor for such shifter, a magnetic mass in proximity to the field-magnet, a comp pensating motor, and. connections for such IOO IIO

4 ceases tric machines, the combination of a movable current-collector with a shifter therefor having oppositely-faced ratchets, a driving-motor carrying oppositely-acting dogs to engage such ratchets, a magnetic mass in proximity to the field-magnet, a compensating` motor and connections from such mass an d re-enforcing motor to the driving-motor to control its application to the shifter.

IS. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor having oppositely-faced ratchets, and a drivingmotor for the shifter having oppositely-acting dogs to engage such ratchets, said dogs movable in a line` at an angle to said ratchets.

19. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor having oppositely-faced ratchets, a driving-motor for the shifter having oppositely-acting dogs to engage such ratchets, said dogs movable in aline at an angle to said ratchets, a magnetic mass in proximity to the field-magnet, and connections therefrom to the driving-motor to control its application to the shifter.

20. In a current-regulator for dynamo-electric machines, the combination of a movable cturent-collector With a shifter therefor, a driving-motor for such shifter, a pivoted magnetic mass in proximity to the field-magnet, and an arm therefrom to the driving-motor to control its application to the shifter.

2l. In a current regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor, a driving-motor for such shifter, oppositelyfaced ratchets on the shifter and oppositelyacting dogs on the motor, said dogs movable in a line at an angle to the line of the ratchets, a magnetic mass in proximity to the fieldmagnet, a compensating motor and connections from the mass, and the re-enforcing motor to the driving-motor to control its application to the shifter.

22. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a shifter therefor connected therewith by a spring-connection and having oppositely-faced ratchets, With a motor having oppositely-acting dogs to engage such ratchets, said dogs movable in a line at an angle to the line of the ratchets.

23. In a current-regulator for dynamo-electric machines, the combination of a movablecurrent-collector with a shifter therefor, a constantly-moving motor to intermittently drive the same, severable connections between the motor and shifter, and a magnetic mass in proximity to the field-magnet, and connections therefrom to such severable connections to, control the application of the driving-motor to the shifter.

24:. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector with a driving-motor for such collector, a magnetic mass in proximity to the field-magnet, and mechanical connection fromthe mass to the motor to control the application -of the latter to the collector.

25. In a current-regulator for diciamo-electric machines, the combination of a movable current-collector, a driving-motor for suchcollector, a magnetic mass in proximity to the field-magnet, acompensating motor, and connections from such magnetic mass and comcnsatinO motor to the driving-motor to con-V trol the application of the driving-motor to the collector. Y

'26. In a currelit-regulator for dynamo-electric machines, the combination of a movable current-collector With a driving-motor therefor having oppositely-faced ratchets and carrying oppositely-acting dogs to engage such ratchets, a magneticmiass in proximity to the field-magn et, and connections therefrom to the driving-motor to control the application ,of the driving-motor to the collector.

27. In a current-regulator for dynamo-electric machines, the combination of ak movable current-collector with a driving-motor therefor having oppositely-faced ratchets and carrying oppositely-acting dogs to engage4 such ratchets, a magnetic mass in proximity to the held-magnet, a compensating motor, and connections from such mass and compensating motor to the driving-motor to control its application to the collector.

28. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector VWith a driving-motor therefor having oppositely-faced ratchets and oppositely-acting dogs to engage such ratchets, said dogs movable in a line at an angle to said ratchets.

29. In a current-regalator for dynamo-elec` tric machines, the combination of a movable current-collector with a driving-motor therefor, a pivoted magnetic mass in proximity to the field-magnet, and an arm therefrom to the driving-motor to con trol its application to the collector.

30. In a current-regulator for dynamo-electric machines, the combination of a movable current-collector With a shifter therefor, aconstantly-moving motor to intermittently drive the same and adapted to be connected therewith, a magnetic mass in proximity to the field-magnet, and connections therefrom to such motor to control the application thereof to the shifter.y

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seaeee 5 31. na Current-regulatorfor dynamo-ele@ to the field-magnet, and Connections theretrio machines7 the combination 0f a movable from to the motor to control its application current-collector, a shifter therefor, a drivingto the shifter.

motor for said shifter, Connecting parts he- ELMER A. SPERRY 5 tween the shifter and motor and attached to Witnesses:

one and adapted to engage the other at Vary- FRANCIs W. PARKER,

ing intervals, a magnetic mass in proximity CELESTE P. CHAPMAN. 

